Hi:
A few days ago, I found this filter
http://agenaastro.com/baader-calcium-ca ... -1-25.html
Does somebody know it? Does it work well? Is it worth to buy it?
I ask it because before there were Calcium Telescopes for solar observations, but currently, I don't find them. However, there are modules, at least, sold by Lunt. The filter is cheaper than a module.
Regards
Angel
A doubt about a Calcium Filter for solar observation
- marktownley
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Re: A doubt about a Calcium Filter for solar observation
It will only perform slightly better than a white light continuum filter for imaging. The photos in the link are unrepresentative of what you can achieve with this filter. Either get a white light filter or save up for the Lunt is my advice.
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: A doubt about a Calcium Filter for solar observation
Angel the Lunt is the go.I use the Baader as a double stack
- Montana
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Re: A doubt about a Calcium Filter for solar observation
Here is a post showing the difference between WL and with the Baader K line attached http://stargazerslounge.com/topic/24898 ... ine-25715/
Alexandra
Alexandra